Materials Literature
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The first electrical conductivity measurements of monoatomic carbon chains are reported in this study. The chains were obtained by unraveling carbon atoms from graphene ribbons while an electrical current flowed through the ribbon and, successively, through the chain. The formation of the chains was accompanied by a c…
This is a reply to the comments by Hu et al. directed to a previous paper "Toward scatter-free phosphors in white phosphor-converted light-emitting diodes" by Park et al., [Opt. Express 20(9), 10218 (2012)].
Pengaruh nitrocarburizing terhadap perubahan kekerasan dan struktur mikro pada bahan Zr-4 (bahan untuk cladding bahan bakar nuklir PWR) dengan alat nitrocarburizing DC plasma telah dipelajari. Beberapa samples telah di nitrocarburizing pada suhu (550 – 700)oC selama 1 jam. Hasilnya menunjukkan bahwa, pada sample awal…
In the most common case, when the medium surrounding the lens is less dense than the lens material, a lens thicker at the center than at the edge is convergent, and a lens thinner at the center is negative. If the lens has a plane surface, the optical axis is the line that passes through the center of curvature of the…
Purpose The purpose of this paper is to evaluate upholstery deformation by using resonant vibrations of separate zones of the soft part. Design/methodology/approach By recording the value of resonant frequency at separate points of the plane, it becomes possible to obtain the graph of deformation distribution. It is c…
Socks are one of the most common wear covering the lower leg in daily life. In this experiment, 40 participants are scanned, all 20 to 22 years old college students, to research the distribution of the pressure of the cross section of the lower leg. First we obtain the figure of the cross section of lower leg at the t…
Experimental investigations are carried out to study the effect of a non uniform electric field on the boiling heat transfer. The study has found that the heat transfer coefficient increases as the electric field strength increases. Enhanced coefficient decreases with heat flux increases and finally reaches a steady v…
Due to their negative permittivity, plasmonic materials have found increasing number of applications in advanced photonic devices and metamaterials, ranging from visible wavelength through microwave spectrum. In terms of intrinsic loss and permittivity dispersion, however, limitations on available plasmonic materials…
We previously reported on the synergistic effects of hyperthermia and chemotherapy using doxorubicin (DOX) and Indocyanine Green (ICG). In a previous study we also explored the potential use of simultaneous entrapment of optical/imaging and chemotherapeutic agents into PLGA nanoparticles. The aim of the present study…
A laser beam focused beneath a Kelvin probe needle allows for evaluation of laser-induced Volta potential shifts that can be used to identify (ir)reversible structural rearrangements at the sample surface. This work investigates the impact of laser irradiation on different substrate materials and the influence of lase…
S n O 2 nanosheet–assembled graded continuous films were successfully fabricated in aqueous solutions containing S n F 2 of 250 m M at 90°C. Thickness reached 1200 nm after immersion for 24 h. The nanosheets were 100–500 nm in in‐plane sheet size and 5–20 nm in thickness. The graded structures were caused by gradual c…
Research on chiral metamaterials has drawn much attention in recent years. By virtue of chirality, for example, it has been shown that chiral metamaterials can achieve negative refractive index without great energy dissipation. In this report, we applied effective parameter retrieval technique to study the material pr…
We present a three-dimensional metallic nano-structure, which consists of a nano-hole array in a gold membrane and a co-registered array of gold nano-disks situated on a substrate below the membrane. This structure provided a transmission resonance due to a localized surface plasmon (LSP) interaction between each hole…
Ultrashort pulses in the terahertz (THz) spectral range allow us to study and control spin dynamics on time scales faster than a single oscillation cycle of light. In a first set of experiments, we harness an optically triggered coherent lattice vibration to induce a transient spin-density wave in BaFe2As2, the parent…
In this work films of horizontally aligned single-walled carbon nanotubes were thermally and electrically characterized in order to determine their bolometric performance. Studies were conducted on semiconducting carbon nanotubes, metallic carbon nanotubes, and a mixture. Results show that composite morphology along w…
We provide an overview of our recent advances in the manipulation of wetting in inverse-opal photonic crystals. Exploiting photonic crystals with spatially patterned surface chemistry to confine the infiltration of fluids to liquidspecific spatial patterns, we developed a highly selective scheme for colorimetry, where…
A metallic nano-hole array (NHA) structure with dynamic SP energy matching has been recently introduced, which benefits from a smaller resonance bandwidth, higher resonance transmission efficiency, and higher surface plasmon resonance (SPR) sensitivity compared to a structure without dynamic SP energy matching. Here,…
In this paper, we present one planar graded photonic quasicrystals based on phyllotaxy structure (PSPQ) to mimic the Luneburg lens. The PSPQ is composed by discrete cylinders, which radius are determined by the index profile of Luneburg lens and Maxwell-Garnett effective medium theory, to mimic the graded index (GRIN)…
Two new complexes, namely [Cu(L1)2(4,4′-bipy)] (1) and [Cu(L2)(2,2′-bipy)(H2O)·NO3·H2O] (2) (HL1˭2-(2-methoxy phenylthio)benzoic acid, HL2˭2-hydroxybenzoic acid, 4,4′-bipy = 4,4′-pyridine and 2,2′-pyridine), have been synthesized and characterized. The complex 1 has 1D covalent chain bridged by 4,4′-bipy ligands. Whil…
To detect degradation in steam generator (SG) tubes, periodic inspection using nondestructive examination techniques, such as an eddy current testing, is a common practice. Therefore, it is critical to evaluate and validate the reliability of the eddy current technique for ensuring the structural integrity of the SG t…